Nope, but with the greatest respect Invasions is so unbearably linear, do you actually need one? Just keep following green until it's all blue.
I don't even know why there's the gated-off key-unlocked areas (not referring to the titan unlocked areas), when it's so linear what's the point of unlocking a gate when you can't go there anyway without having completed all the necessary fights to reach the gate already? You reach the gate and you already have the key, so it's utterly pointless. Definitely feels like it was designed to be free-roam and that all got scrapped to reduce play-testing or something. When you can't explore or reach a gate without already having unlocked it, there's no point in the gate. Sigh, that's just a general rant against Invasions, no disrespect to your query...